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button{border-radius:20px;min-height:106px}.lk-choice-row-v2 button .lk-option-text-en{font-size:17px}.lk-drag-items button,.lk-drop-target{min-width:88px}}.lk-zh-hint-button{color:#6c55d9;background:#8b7cff1f;border:0;border-radius:999px;justify-content:center;align-items:center;min-width:26px;min-height:24px;padding:4px 8px;font-size:12px;font-weight:900;line-height:1;display:inline-flex}.lk-choice-row-v2 button .lk-zh-hint-button{align-self:center;margin-top:2px}.lk-inline-hint-row{justify-content:flex-end;margin:-2px 0 2px;display:flex}.lk-match-header .lk-zh-hint-button{white-space:nowrap;margin-left:auto}.lk-spell-actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.lk-spell-actions .lk-reset-button:disabled{opacity:.45}.lk-letter-keyboard{background:#ffffff73;border-radius:22px;gap:4px;width:min(100%,390px);margin:0 auto;padding:6px;display:grid;box-shadow:inset 0 1px #ffffffb8}.lk-letter-keyboard-row{justify-content:center;gap:1px;display:grid}.lk-letter-keyboard-row:first-child{grid-template-columns:repeat(10,minmax(0,1fr))}.lk-letter-keyboard-row:nth-child(2){grid-template-columns:repeat(9,minmax(0,1fr));padding-inline:7px}.lk-letter-keyboard-row:nth-child(3){grid-template-columns:repeat(7,minmax(0,1fr));padding-inline:24px}.lk-letter-key{color:#172033;cursor:pointer;isolation:isolate;touch-action:manipulation;background:#fff;border:0;border-radius:12px;width:100%;min-width:0;min-height:43px;font-size:clamp(24px,7vw,30px);font-weight:1000;line-height:1;transition:transform .12s,box-shadow .12s,opacity .12s;position:relative;overflow:visible;box-shadow:0 6px #78480024,0 10px 18px #1f2a441f}.lk-letter-bubble-burst{z-index:3;pointer-events:none;position:absolute;inset:-135% -65%}.lk-letter-bubble-burst:before,.lk-letter-bubble-burst:after{content:"";background-repeat:no-repeat;width:100%;height:100%;position:absolute;left:0}.lk-letter-bubble-burst:before{filter:drop-shadow(0 0 8px #ffcf24f2)drop-shadow(0 6px 10px #f9731647);background-image:radial-gradient(circle,#fff 0 16%,#0000 18%),radial-gradient(circle,#fff7ad 0 18%,#0000 20%),radial-gradient(circle,#ffcf24 0 20%,#0000 22%),radial-gradient(circle,#fb923c 0 18%,#0000 20%),radial-gradient(circle,#f97316 0 16%,#0000 18%),radial-gradient(circle,#fff 0 14%,#0000 16%),linear-gradient(90deg,#0000 0 34%,#fff7ad 35% 65%,#0000 66%),linear-gradient(90deg,#0000 0 36%,#fb923c 37% 63%,#0000 64%),linear-gradient(90deg,#0000 0 38%,#ffcf24 39% 61%,#0000 62%);background-size:12% 12%,16% 16%,20% 20%,16% 16%,12% 12%,10% 10%,22% 5%,20% 5%,18% 5%;animation:.58s cubic-bezier(.16,.96,.34,1) forwards lkLetterTopBubbles;top:0}.lk-letter-bubble-burst:after{filter:drop-shadow(0 0 8px #ffcf24f2)drop-shadow(0 6px 10px #f973163d);background-image:radial-gradient(circle,#fff 0 15%,#0000 17%),radial-gradient(circle,#fff7ad 0 18%,#0000 20%),radial-gradient(circle,#ffcf24 0 19%,#0000 21%),radial-gradient(circle,#fb923c 0 17%,#0000 19%),radial-gradient(circle,#f97316 0 16%,#0000 18%),radial-gradient(circle,#fde68a 0 14%,#0000 16%),linear-gradient(90deg,#0000 0 34%,#fff7ad 35% 65%,#0000 66%),linear-gradient(90deg,#0000 0 36%,#fb923c 37% 63%,#0000 64%),linear-gradient(90deg,#0000 0 38%,#ffcf24 39% 61%,#0000 62%);background-size:14% 14%,18% 18%,20% 20%,16% 16%,12% 12%,10% 10%,22% 5%,20% 5%,18% 5%;animation:.58s cubic-bezier(.16,.96,.34,1) forwards lkLetterBottomBubbles;bottom:-18%}@keyframes lkLetterTopBubbles{0%{opacity:1;background-position:50% 68%,50% 70%,50% 70%,50% 70%,50% 70%,50% 70%,50% 72%,50% 72%,50% 72%;transform:scale(.55)rotate(0)}48%{opacity:1;background-position:-6% 26%,8% -8%,28% 10%,50% -18%,73% 8%,96% 24%,22% 42%,52% 20%,78% 42%;transform:scale(1.08)rotate(-4deg)}to{opacity:0;background-position:-16% 12%,4% -24%,25% -4%,50% -34%,78% -6%,108% 10%,13% 34%,52% 8%,90% 32%;background-size:0 0,0 0,0 0,0 0,0 0,0 0,0 0,0 0,0 0;transform:scale(1.32)rotate(-8deg)}}@keyframes lkLetterBottomBubbles{0%{opacity:1;background-position:50% 18%,50% 18%,50% 18%,50% 18%,50% 18%,50% 18%,50% 18%,50% 18%,50% 18%;transform:scale(.55)rotate(0)}48%{opacity:1;background-position:-4% 86%,16% 104%,38% 74%,58% 116%,78% 78%,98% 94%,18% 66%,56% 88%,86% 64%;transform:scale(1.08)rotate(5deg)}to{opacity:0;background-position:-14% 104%,12% 124%,34% 94%,58% 138%,82% 98%,110% 112%,8% 78%,58% 104%,98% 76%;background-size:0 0,0 0,0 0,0 0,0 0,0 0,0 0,0 0,0 0;transform:scale(1.32)rotate(9deg)}}.lk-letter-key.is-allowed:active{transform:translateY(3px);box-shadow:0 3px #78480029,0 6px 12px #1f2a441f}.lk-letter-key.is-disabled,.lk-letter-key:disabled{color:#a0a8b8;box-shadow:none;cursor:not-allowed;opacity:.72;background:#e5e7ebb8}.lk-letter-key.is-used-up{color:#78480073;box-shadow:none;cursor:not-allowed;opacity:.58;background:#f5de9185}.lk-selected-tile.spell-slot--filled{color:#111827;font-size:clamp(28px,7.8vw,34px);font-weight:1000;line-height:1}.lk-selected-tile.spell-slot--empty{color:#3c3c3c40;font-size:clamp(21px,6vw,24px);font-weight:850}.lk-selected-tile.spell-slot-letter--typed{color:#111827;opacity:1;font-size:clamp(28px,7.8vw,34px);font-weight:1000;line-height:1}.lk-selected-tile.spell-slot-letter--ghost,.lk-selected-tile.spell-slot-letter--ghost:disabled{color:#11182740;opacity:1;cursor:default;font-size:clamp(26px,7vw,32px);font-weight:750;line-height:1}.lk-selected-tile.spell-slot-letter--empty,.lk-selected-tile.spell-slot-letter--empty:disabled{color:#1118272e;opacity:1;cursor:default;font-size:clamp(21px,6vw,24px);font-weight:850}.lk-letter-keyboard+.lk-spell-actions{margin-top:2px}.lk-spell-hint{color:#8a4b00;text-align:center;background:#fff7d6;border-radius:16px;width:min(100%,360px);margin:0;padding:9px 13px;font-size:15px;font-weight:800;line-height:1.45}.lk-spell-hint.is-revealed{color:#78350f;background:#fff1c2;font-size:17px}.lk-spell-answer-card{text-align:center;background:linear-gradient(#fff8dc 0%,#fff 78%);border:2px solid #f59e0b40;border-radius:20px;justify-items:center;gap:5px;width:min(100%,370px);margin:0 auto;padding:13px 15px;display:grid;box-shadow:0 12px 28px #7848001f}.lk-spell-answer-eyebrow{color:#92400e;background:#ffe26a9e;border-radius:999px;justify-content:center;align-items:center;min-height:24px;padding:3px 10px;font-size:12px;font-weight:950;display:inline-flex}.lk-spell-answer-line{color:#4b5563;margin:0;font-size:15px;font-weight:850}.lk-spell-answer-line strong{color:#111827;letter-spacing:0;font-size:clamp(24px,7vw,32px);font-weight:1000}.lk-spell-answer-zh,.lk-spell-answer-ipa,.lk-spell-answer-tip{margin:0;font-weight:850}.lk-spell-answer-zh{color:#374151;font-size:16px}.lk-spell-answer-ipa{color:#c2410c;background:#fff7ed;border-radius:999px;padding:3px 10px;font-size:13px}.lk-spell-answer-tip{color:#6b7280;font-size:13px;line-height:1.45}.lk-spell-hint-button{color:#9a3412;background:#fff7ed;border-color:#fb923c47}.lk-spell-continue{color:#5f3600;background:linear-gradient(#ffd86a,#ffbd3d);border:0;border-radius:999px;padding:12px 22px;font-size:17px;font-weight:900;box-shadow:0 10px 22px #d9770638}.lk-spell-phrase-skip{color:#7c2d12;text-align:center;background:#fff7edf0;border-radius:20px;justify-items:center;gap:10px;padding:18px;display:grid}.lk-spell-phrase-skip strong{font-size:18px;font-weight:900}.lk-spell-phrase-skip small{color:#9a3412;font-weight:800}.word-explain-layer{z-index:990;pointer-events:auto;touch-action:none;background:#11182712;position:fixed;inset:0}.word-explain-card{left:max(14px,50vw - 201px);right:max(14px,50vw - 201px);bottom:calc(20px + env(safe-area-inset-bottom));z-index:999;pointer-events:auto;touch-action:manipulation;background:radial-gradient(circle at 92% 8%,#ffdf7042 0 28px,#0000 29px),linear-gradient(#fff8db 0%,#fffdf5 54%,#fff 100%);border:2px solid #f59e0b38;border-radius:28px;gap:8px;max-height:42dvh;padding:16px 17px 15px;display:grid;position:fixed;overflow:hidden auto;box-shadow:0 20px 44px #78480029,inset 0 2px #ffffffd9}.word-explain-close{color:#a16207;background:#fff7edd1;border:0;border-radius:999px;place-items:center;width:28px;height:28px;font-size:19px;font-weight:900;line-height:1;display:grid;position:absolute;top:10px;right:12px;box-shadow:inset 0 0 0 1px #fbbf242e}.correct-feedback-card{left:max(18px,50vw - 197px);right:max(18px,50vw - 197px);bottom:calc(20px + env(safe-area-inset-bottom));z-index:1000;background:radial-gradient(circle at 8% 10%,#a7f3d08c 0 30px,#0000 31px),linear-gradient(135deg,#ecfdf5 0%,#fff 62%,#fefce8 100%);border:2px solid #10b9813d;border-radius:26px;grid-template-columns:44px minmax(0,1fr) auto;align-items:center;gap:12px;min-height:74px;padding:12px 14px;animation:.34s cubic-bezier(.2,1.45,.38,1) correctFeedbackFloat;display:grid;position:fixed;box-shadow:0 18px 38px #065f4629,inset 0 2px #ffffffeb}.correct-feedback-icon{background:linear-gradient(#d1fae5,#a7f3d0);border-radius:18px;place-items:center;width:44px;height:44px;font-size:24px;display:grid;box-shadow:0 8px 16px #10b98133}.correct-feedback-copy{gap:2px;min-width:0;display:grid}.correct-feedback-title{color:#065f46;font-size:21px;font-weight:950;line-height:1.05}.correct-feedback-subtitle{color:#047857;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:850;line-height:1.25;overflow:hidden}.correct-feedback-reward{color:#92400e;white-space:nowrap;background:linear-gradient(#fef3c7,#fde68a);border-radius:999px;justify-content:center;align-items:center;min-width:58px;min-height:34px;padding:6px 10px;font-size:17px;font-weight:950;display:inline-flex;box-shadow:0 8px 14px #f59e0b2e}.lk-correct-feedback-enter-active,.lk-correct-feedback-leave-active{transition:opacity .18s,transform .22s}.lk-correct-feedback-enter-from,.lk-correct-feedback-leave-to{opacity:0;transform:translateY(18px)scale(.96)}@keyframes correctFeedbackFloat{0%{opacity:0;transform:translateY(20px)scale(.92)}70%{opacity:1;transform:translateY(-4px)scale(1.02)}to{opacity:1;transform:translateY(0)scale(1)}}.word-explain-title{color:#92400e;align-items:center;gap:8px;display:flex}.word-explain-title-dot{background:linear-gradient(#fff1b8,#fed766);border-radius:50%;place-items:center;width:24px;height:24px;display:grid;box-shadow:0 5px 10px #f59e0b29}.word-explain-title-dot:before{content:"";background:#f59e0b;border-radius:999px;width:10px;height:10px;box-shadow:0 -5px 0 -3px #f59e0b,0 5px 0 -3px #f59e0b,5px 0 0 -3px #f59e0b,-5px 0 0 -3px #f59e0b}.word-explain-title strong{color:#92400e;font-size:16px;font-weight:900;line-height:1.2}.word-explain-label{color:#6b7280;margin:0;font-size:13px;font-weight:800;line-height:1.15}.word-explain-word{flex-wrap:wrap;align-items:center;gap:8px;min-width:0;padding-right:34px;display:flex}.word-explain-en{overflow-wrap:anywhere;color:#111827;text-transform:none;min-width:0;font-size:28px;font-weight:950;line-height:1.04}.word-explain-zh{color:#374151;white-space:normal;margin:-2px 0 0;font-size:17px;font-weight:850;line-height:1.25;display:block}.word-explain-phonics{color:#c2410c;background:#fff7ed;border-radius:999px;justify-self:start;align-items:center;min-height:26px;margin:0;padding:4px 10px;font-size:14px;font-weight:850;line-height:1;display:inline-flex}.word-explain-ipa{color:#b45309;background:#fef3c7eb;border-radius:999px;justify-self:start;align-items:center;min-height:24px;margin:-2px 0 0;padding:3px 10px;font-size:14px;font-weight:850;line-height:1;display:inline-flex}.word-explain-image{object-fit:contain;background:#ffffffad;border-radius:18px;max-width:74px;max-height:74px;box-shadow:inset 0 0 0 1px #f59e0b24}.word-explain-tip{color:#4b5563;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:14px;font-weight:800;line-height:1.42;display:-webkit-box;overflow:hidden}.word-explain-empty{color:#6b7280;margin:0;font-size:14px;font-weight:800;line-height:1.45}.word-explain-example{color:#7c4a03;margin:-2px 0 0;font-size:13px;font-weight:850;line-height:1.36}.word-explain-example span{color:#92400e;background:#fef3c7e0;border-radius:999px;margin-right:6px;padding:2px 7px;font-size:12px;font-weight:950;display:inline-flex}.word-explain-action{color:#8a4b00;pointer-events:auto;background:linear-gradient(#ffe08a,#ffc857);border:0;border-radius:999px;justify-self:end;min-width:86px;min-height:38px;padding:8px 16px;font-weight:900;box-shadow:0 8px 16px #f59e0b38}.lk-word-card-enter-active,.lk-word-card-leave-active{transition:opacity .2s,transform .24s}.lk-word-card-enter-from,.lk-word-card-leave-to{opacity:0;transform:translateY(16px)scale(.98)}@media (width<=414px){.word-explain-card{padding:14px;left:12px;right:12px}.correct-feedback-card{grid-template-columns:40px minmax(0,1fr) auto;min-height:68px;padding:11px 12px;left:12px;right:12px}.correct-feedback-icon{border-radius:16px;width:40px;height:40px;font-size:22px}.correct-feedback-title{font-size:20px}.correct-feedback-reward{min-width:52px;padding:5px 9px;font-size:16px}.word-explain-en{font-size:26px}}.lk-play-v2{background:radial-gradient(circle at 18% 6%,#fff7c9bf 0 68px,#0000 69px),linear-gradient(#ecf8ff 0%,#fff 58%,#f7fbf2 100%)}.lk-play-v2.lk-reading-wood-page{--textbook-stage-width:min(100%, calc(100vw - 20px), 960px);background:linear-gradient(#ffffff29,#fff3),url(/student-assets/backgrounds/reading-wood-bg.webp) 50%/100% 100% no-repeat;overflow-x:hidden}.lk-phone.lk-reading-wood-page{box-sizing:border-box;width:min(100vw,1040px);max-width:100vw;padding-inline:0}.lk-reading-wood-page .lk-play-header{display:none}.lk-reading-wood-page .lk-context-reading-shell.lk-question-card{box-shadow:none;background:0 0;border:0;border-radius:0;margin:0;padding:0}.lk-reading-wood-page .lk-context-reading-shell.lk-practice-card-separated.lk-question-card-v2{box-shadow:none;will-change:auto;background:0 0;border:0;border-radius:0;margin:8px 0 0;padding:0;animation:none;transform:none}.lk-reading-wood-page .lk-context-reading-shell .lk-context-reading.is-textbook-reading{min-height:auto;box-shadow:none;background:0 0;border:0;border-radius:0;padding:0 0 18px}.lk-reading-wood-page .lk-textbook-reading-body,.lk-reading-wood-page .textbook-flipbook-reader,.lk-reading-wood-page .textbook-flipbook-stage{width:var(--textbook-stage-width);max-width:var(--textbook-stage-width);box-sizing:border-box;min-width:0;margin-inline:auto}.lk-reading-wood-page .textbook-flipbook-reader{justify-items:center;gap:8px}.lk-reading-wood-page .textbook-flipbook-stage{padding:0 0 10px}.lk-story-scene.lk-market-scene{isolation:isolate;background:linear-gradient(#cceffff2 0%,#eef9fff2 44%,#faf4def2 45%,#fffaebfa 100%);border-radius:30px;min-height:386px;box-shadow:0 18px 38px #2e6ba424}.lk-story-scene.lk-market-scene:after{display:none}.lk-story-scene .lk-market-bg-img{opacity:.08;filter:saturate(.7)blur(.5px)}.lk-story-shop{background:radial-gradient(circle at 16% 16%,#ffffffb3 0 36px,#0000 37px),linear-gradient(#eaf8ff 0%,#fff8e7 100%);border-radius:26px;position:absolute;inset:14px 14px 112px;overflow:hidden;box-shadow:inset 0 0 0 1px #ffffffd1}.lk-story-wall{background:linear-gradient(90deg,#ffffff8c 1px,#0000 1px) 0 0/36px 36px,linear-gradient(#d9f3ff,#f7fbff);position:absolute;inset:0 0 36%}.lk-story-sign{color:#25624d;background:#fff7cc;border:2px solid #ffffffe0;border-radius:999px;align-items:center;min-height:32px;padding:0 14px;font-size:13px;font-weight:950;display:inline-flex;position:absolute;top:16px;left:18px;box-shadow:0 8px 18px #4a72521f}.lk-story-window{background:linear-gradient(90deg,#0000 48%,#ffffffd9 49% 52%,#0000 53%),linear-gradient(#b8eaff,#e9fbff);border:4px solid #ffffffd1;border-radius:18px;width:72px;height:58px;position:absolute;top:22px;right:18px;box-shadow:0 10px 20px #4974a11f}.lk-story-shelf{z-index:3;background:linear-gradient(#c9894b 0%,#a4632f 100%);border-radius:24px 24px 18px 18px;width:178px;min-height:150px;padding:16px 14px 18px;position:absolute;bottom:34px;right:16px;box-shadow:inset 0 16px #ffffff21,0 18px 24px #59341729}.lk-story-shelf:before,.lk-story-shelf:after{content:"";background:#68391a52;border-radius:999px;height:12px;position:absolute;left:8px;right:8px}.lk-story-shelf:before{top:72px}.lk-story-shelf:after{bottom:12px}.lk-story-fruit-row{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.lk-story-fruit-row span{z-index:2;background:#fff6d5f2;border-radius:16px;place-items:center;min-width:0;height:50px;display:grid;position:relative;box-shadow:0 8px 14px #602d0e1f}.lk-story-fruit-row span.focus{animation:1.8s ease-in-out infinite lkFruitGlow}.lk-story-fruit-row img{object-fit:contain;width:42px;height:42px}.lk-story-basket-row{z-index:2;color:#fff8df;background:#5c301238;border-radius:16px;align-items:center;gap:8px;margin-top:20px;padding:8px 10px;font-size:11px;font-weight:900;display:flex;position:relative}.lk-story-basket-row 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th,.teacher-table td{text-align:left;color:#3d536b;white-space:nowrap;border-bottom:1px solid #e8f0f7;padding:12px;font-weight:750}.teacher-table th{color:#64778d;background:#f5f9ff;font-size:13px}.teacher-table tr:last-child td{border-bottom:0}.status-completed{color:#176b47;background:#e7f8ef}.status-in_progress{color:#23669c;background:#e9f6ff}.status-pending{color:#806200;background:#fff8dc}.teacher-accuracy{border-radius:999px;align-items:center;min-height:28px;padding:0 9px;font-weight:950;display:inline-flex}.accuracy-good{color:#176b47;background:#e7f8ef}.accuracy-warn{color:#806200;background:#fff8dc}.accuracy-bad{color:#b23333;background:#fff0f0}.teacher-export-message{color:#4b667d;background:#f4fbff;border-radius:14px;margin:-6px 0 14px;padding:10px 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minmax(0,1fr);align-items:start}.teacher-rank{color:#92400e;background:#fff4d6;border-radius:12px;place-items:center;width:30px;height:30px;font-size:15px;font-weight:950;display:grid}.teacher-disabled-button{opacity:.62;cursor:not-allowed;margin-top:14px}.teacher-form-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:18px 0;display:grid}.teacher-form-grid label{color:#475569;gap:7px;font-size:13px;font-weight:800;display:grid}.teacher-form-grid input,.teacher-form-grid select{color:#0f172a;background:#fff;border:1px solid #dbe3ef;border-radius:12px;min-height:42px;padding:0 12px;font-weight:800}.teacher-type-checks{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.teacher-type-checks button{color:#475569;cursor:pointer;background:#f8fafc;border:1px solid #dbe3ef;border-radius:999px;min-height:38px;padding:0 14px;font-weight:900}.teacher-type-checks button.active{color:#5b21b6;background:#f3e8ff;border-color:#7c3aed}.teacher-review-source{background:#f8fafc;border-radius:16px;flex-wrap:wrap;align-items:center;gap:9px;padding:12px;display:flex}.teacher-source-card{background:linear-gradient(135deg,#fff 0%,#eff6ff 100%);border-color:#dbeafe;margin-bottom:16px}.teacher-success-box{color:#166534;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:16px;gap:8px;margin-top:14px;padding:14px;font-weight:800;display:grid}.teacher-error-message{color:#b91c1c;margin:12px 0 0;font-weight:900}.teacher-modal-actions{justify-content:flex-end;gap:10px;margin-top:16px;display:flex}.teacher-wrong-homework-modal{width:min(720px,100%)}.teacher-empty{justify-items:start;gap:8px;display:grid}.teacher-modal-backdrop{z-index:100;background:#0f1d3057;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.teacher-modal{background:#fff;border-radius:22px;width:min(980px,100%);max-height:min(760px,92dvh);padding:20px;position:relative;overflow:auto;box-shadow:0 24px 70px #0f1d303d}.teacher-modal h2{margin:0 0 4px}.teacher-modal-close{color:#456274;cursor:pointer;background:#eef7ff;border:0;border-radius:50%;width:36px;height:36px;font-size:24px;font-weight:900;position:absolute;top:14px;right:14px}.teacher-quality-card{background:#f8fbff;border:1px solid #dfe9f4;border-radius:16px;gap:10px;margin:12px 0;padding:14px;display:grid}.teacher-quality-card.is-good{background:#f3fff8;border-color:#b8ead1}.teacher-quality-card.is-warn{background:#fffaf0;border-color:#ffe0a6}.teacher-quality-card.is-bad{background:#fff5f5;border-color:#ffc0c0}.teacher-warning-text{color:#b45309;margin:0;font-weight:800}.teacher-quality-list{color:#7f1d1d;gap:6px;font-size:13px;line-height:1.45;display:grid}.teacher-quality-list.is-suggestions{color:#31536a}@media (width<=820px){.teacher-shell{grid-template-columns:1fr}.teacher-sidebar{height:auto;position:relative}.teacher-nav{grid-template-columns:repeat(2,minmax(0,1fr))}.teacher-main{padding:16px}.teacher-grid,.teacher-two{grid-template-columns:1fr}.teacher-section-head,.teacher-row-line{flex-direction:column;align-items:flex-start}.teacher-type-row{grid-template-columns:1fr 1fr}.teacher-insight-grid,.teacher-weak-word-grid,.teacher-homework-stats{grid-template-columns:1fr}}